ALL boat owners are being urged to ensure they have a carbon monoxide alarm fitted in the wake of the tragic death of two fishermen in North Yorkshire.

MPs made their call after initial investigations found that Mark Arries, 26, and Edward Ide, 21, died last month when they were poisoned by carbon monoxide.

The pair, from Northumberland, died in their bunks on the scallop dredger Eshcol after lighting a butane gas cooker to stay warm as they spent the night moored in Whitby harbour.

Their vessel was not fitted with an alarm – prompting a quick response from the All-Party Parliamentary Carbon Monoxide Group.

Co-chairman Barry Sheerman said: “It’s vital the public understands that CO is a deadly gas which emanates from a number of various sources, not just domestic fires as many believe.”

He added: “This case shows that proper installation, servicing and use of appropriate products according to their instructions, wherever you are, is critical. Exhaust fumes can kill in minutes in an enclosed space like a boat cabin.

“A CO alarm must be installed on any boat with a carbon-fuel burning appliance and I urge all boat owners who do not have an alarm fitted, to do so immediately.”

He warned the public: “CO poisoning is a threat in your home, on boats, in camping tents and in many other environments. Be vigilant, and we can stop these tragic deaths.”

Carbon monoxide is a colourless, odourless gas which can kill in minutes but the early symptoms of CO poisoning can be mistaken for colds or flu.

Victims might suffer headaches, become bad tempered; feel sick and dizzy; they might be tired and confused or have stomach pains and start throwing-up.

Any carbon-fuel burning appliance or engine can cause CO – carbon fuels include diesel, petrol, gas, coal, wood and charcoal.